pywer

Pywer is a simple Python package to calculate word error rate (WER). Pywer can also calculate character error rate (CER).

Install

You can install pywer via pip.

pip install pywer

Usage

import pywer

references = [
    "this is a simple python package",
    "it calculates word error rate",
    "it can also calculate cer",
]
hypotheses = [
    "this is the simple python package",
    "it calculates word error",
    "it can also calculate see er",
]

wer = pywer.wer(references, hypotheses)
cer = pywer.cer(references, hypotheses)
print(f"WER: {wer:.2f}, CER: {cer:.2f}")

Development

Install pre-commit hooks.

pip install pre-commit
pre-commit install --install-hooks